It’s not even rare for Ethernet to be 1.5usec or less latency per switch. 80usec would be impossible to sell in any compute cluster.
IIRC, Arista started off focusing on the financial market with low latency.
There's fairly well regarded in a general sense nowadays (at least /r/networking often has folks recommending them as a vendor).
"Measuring the latency of a 4ns switch":
* https://www.arista.com/assets/data/pdf/Latency-4ns-Switch-So...